QuakeIndex

Earthquake · reviewed by a seismologist

M 4.1ml

Earthquake near Fillmore, UT

No earthquake was likely felt in Fillmore in the 24 hours to 11:23 pm MST (06:23 UTC). The last one was M 3.5, 55 km (34 mi) W, at 1:02 am MDT on 27 September 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Fillmore

This page: a magnitude 4.1 earthquake was recorded 44 km (27 mi) west-southwest of Fillmore, UT, at 9:59 pm MDT on 13 April 2019 (03:59 UTC), 1.1 km deep. 3 people have reported feeling it to USGS.

USGS: 28 km W of Kanosh, Utah

9:59 pm MDT, Apr 13, 2019 · · 1.1 km deep · released about 19 tons of TNT

Every earthquake near Fillmore Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Millard County 38 kmBeaver County 62 kmPiute County 74 kmSevier County 83 kmJuab County 105 kmIron County 107 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
9:59 pm MDT on 13 April 2019 ()
Where
44 km (27 mi) west-southwest of Fillmore, UT · earthquakes near Fillmore
Magnitude
M 4.1 (ml)
Depth
1.1 km below the surface
Felt
3 reports · strongest reported intensity III
Measured shaking
intensity IV (ShakeMap)
USGS impact alert
green
Nearest
Millard County, 38 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1558 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon.

At this magnitude and depth, people at rest would likely notice it out to about 102 km (63 mi) from the epicentre. In Fillmore, 44 km away, the estimate is intensity III (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Fillmore 44 km, intensity III · Milford 47 km, intensity III. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 19 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 9,100× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 410× the energy of this one
  3. Magna, Utah 2020 M 5.7 290× the energy of this one
  4. This earthquake M 4.1 about 19 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 39× more

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

The largest earthquake within 50 km (31 mi) since our catalogue begins in 2016. The previous largest was M 4.0 on 2019-02-20.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 6.6 Near Marysvale, Utah · 44 km SE of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 38.7718, -112.7648. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Millard County, UT 38 km (24 mi) WNW earthquakes near Millard County
Beaver County, UT 62 km (38 mi) SW earthquakes near Beaver County
Piute County, UT 74 km (46 mi) SE earthquakes near Piute County
Sevier County, UT 83 km (51 mi) E earthquakes near Sevier County
Juab County, UT 105 km (65 mi) N earthquakes near Juab County
Iron County, UT 107 km (66 mi) SSW earthquakes near Iron County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

45 earthquakes have been recorded within 50 km since this one.

  1. 2.6 13 km SW of Kanosh, Utah
  2. 1.9 13 km SW of Kanosh, Utah
  3. 1.5 20 km ENE of Milford, Utah
  4. 1.6 9 km NNE of Beaver, Utah
  5. 2.3 23.9 km NNE of Kanosh, UT
  6. 1.8 23 km SSW of Kanosh, Utah
  7. 1.5 26 km SSW of Kanosh, Utah
  8. 1.7 9 km NNW of Joseph, Utah
  9. 2.4 26 km SSW of Kanosh, Utah
  10. 1.6 19 km ENE of Milford, Utah
  11. 1.8 19 km SW of Kanosh, Utah
  12. 1.5 18 km SW of Kanosh, Utah
  13. 1.5 25 km SSW of Kanosh, Utah
  14. 1.6 19 km ENE of Milford, Utah
  15. 2.5 20 km ENE of Milford, Utah

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.